Keysight 34921A - 34923 A Simplified Schematic for One-Wire Mode

Keysight 34921A-34925A Low Frequency Multiplexer Modules User’s Guide 35
Low Frequency Multiplexer Modules
34923A Simplified Schematic for One-Wire Mode
This drawing shows two independent 40-channel 1-wire MUXes.
To change configuration modes, use the SYSTem:MODule:WIRE:MODE
command.
The three-digit number assigned to each switch represents the
channel number.
Bank Relays: Reed non-latching; Analog Bus Relays: Armature
non-latching
ABus2
DMM
(SENS)
ABus3
ABus4
ABus1
DMM
(MEAS)
HH H H
021
022
023
024
025
026
027
028
029
030
011
012
013
014
015
016
017
018
019
020
031
032
033
034
035
036
037
038
039
040
001
002
003
004
005
006
007
008
009
010
911 912 913 914
921 922 923 924
HL
HL HLHL
HL
071
072
073
074
075
076
077
078
079
080
061
062
063
064
065
066
067
068
069
070
051
052
053
054
055
056
057
058
059
060
041
042
043
044
045
046
047
048
049
050
H
H
H
H
HL
HL HL HL HL
100
100
100
100
100
100
100 100
100
100
100
100
Bank 1
Bank 2
COM 1
COM 2
Analog Buses
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